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Finding the Fourth Proportional to 171,968.59, 258,051.30 and 66,773.89

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Solution

The fourth proportional to 171,968.59, 258,051.30 and 66,773.89 is: 100,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,968.59 : 258,051.30 = 66,773.89 : x
  2. Step 2: Convert to fraction form
    171,968.59/258,051.30 = 66,773.89/x
  3. Step 3: Cross multiply
    171,968.59x = 258,051.30 × 66,773.89
  4. Step 4: Simplify right side
    171,968.59x = 17,231,089,120.56
  5. Step 5: Solve for x
    x = 17,231,089,120.56/171,968.59
  6. Step 6: Final answer
    x = 100,199.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.